CNC 3020/3040 change board?

[john swift]

yes
that will control the motors just like the tinyG for example
the only thing missing is the FET to switch the spindle motor on and off

with the arduino cnc sheild you have just linked to you can connect either a FET module or relay module to add the spindle on/off control



John

PS

check you don't need to add a 5V supply for the arduino
or 7 to 9V if you use the arduino's built in 5V regulator

the A4988 can use a 35V supply for the motors so if the 3040 cnc control has a 24V supply for the original stepper drivers that can be reused

the supply for the TI DRV8825 can be 8.2-V to 45-V

[john swift]

duplicate post